EETIFERA. 263 



almost obsolete ; umbilicus large, partly concealed by the inner 

 lip. E. papyracea. En. Meth. 436, f. 1." Sw. p. 307. Eapanus, 

 Sebum, rig. 389. 



EAPHANISTEE. Montf. A species of madrepore, described 

 as a shell. 



EAPUM. Humph. Tuebikella, Lam. 



EAZOE SHELL. A common name by which shells of the genua 

 Solen are known in the market. 



EECTILINEAE. (Rectus, right ; llnea, a line.) In a straight 

 line. Ex. The hinge of Byssoarca Nocb, fig. 132. 



EECUEYED. (Ee, back ; curvo, to bend.) Turned backwards ; 

 the term, when applied to symmetrical conical imivalves, is used 

 to signify that the apex is turned towards the posterior margin, 

 as in Emarginula, fig. 241. 



EEELECTED. {Reflected, to fold back.) Turned, or folded back- 

 wards. Ex. The edge of the outer lip in Bulinus, fig. 282, is 

 reflected, while that of Cyprsea, fig. 445 to 450, is inflected. 



EEG-ISTOMA. HasseU, 1824. Puptka vitroea. Thesaurus Con- 

 chyliorum, PI. iv. fig. 6. 



EEMOTE. {Remotus, distant.) Eemote lateral teeth in a bivalve 

 shell, are those that are placed at a distance from the cardinal 

 teeth. Ex. The lateral teeth of Aphrodita, (fig. 123.) are remote ; 

 those of Donas, (fig. 108) are near. 



EENIELLA. Sw. A sub-genus of Malleus. Lardn. Cyclop; 

 Malac. p. 886. Gray states it to be only a distorted specimen 

 of VulseUa, Syn. B. M. p. 145. 



EENIFOEM. {Ren, a kidney ; forma, shape.) Shaped like a 

 kidney. Ex. The aperture of Ampullaria, fig. 318. 



EENIJLINA. Lam. A genus of microscopic Eoraminifera. 



EEOPH AX. Montf. A genus of microscopic Orthocerata, Bl. 



EEPENT. {Repens, creeping.) A term applied to those shells, 

 which, being attached by the whole length of their sheU, give 

 the idea of creeping or crawling. Ex. Vermilia, fig. 7. 



EETICTJLATED. {Reticulatus.) Eesembling net-work. 



EETIFEEA. Bl. The first family of the order Cervicobranchiata, 

 Bl. containing the genus Patella. 



